Mikhail Doronin

FIX support for nested arrays with `config.validate_keys = true`

2

Before this change, it was impossible to validate schema for nested arrays of strings or hashes in params, when `config.validate_keys = true` was set. **Before:** ``` schema = Dry::Schema.Params do...

Currently there is no way to delete a hash key when merging two hashes. Additionally, when using knock-out, when the child value is a hash, it will be replaced by...